Base | Representation |
---|---|
bin | 11000010001000010… |
… | …00010101010100110 |
3 | 1020121221001212020000 |
4 | 30020201002222212 |
5 | 203140103000121 |
6 | 5552422322130 |
7 | 640561212432 |
oct | 141041025246 |
9 | 36557055200 |
10 | 13027781286 |
11 | 558592a9a3 |
12 | 2636b89346 |
13 | 12c807ab30 |
14 | 8b831b9c2 |
15 | 513add526 |
hex | 308842aa6 |
13027781286 has 80 divisors (see below), whose sum is σ = 31468109904. Its totient is φ = 4004634816.
The previous prime is 13027781269. The next prime is 13027781293. The reversal of 13027781286 is 68218772031.
It is a super-3 number, since 3×130277812863 (a number of 31 digits) contains 333 as substring.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2750176 + ... + 2754908.
Almost surely, 213027781286 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13027781286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15734054952).
13027781286 is an abundant number, since it is smaller than the sum of its proper divisors (18440328618).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13027781286 is a wasteful number, since it uses less digits than its factorization.
13027781286 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6067 (or 6058 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 45.
The spelling of 13027781286 in words is "thirteen billion, twenty-seven million, seven hundred eighty-one thousand, two hundred eighty-six".
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